ART: Refactor libopenjdkjvmti

Move jvmti.h to its own folder and fix up include setup.

Bug: 31455788
Test: m
Change-Id: I5beb66fc5d0178746216f61f9214cda54fc2c7ac
diff --git a/test/904-object-allocation/tracking.cc b/test/904-object-allocation/tracking.cc
index 95eab0c..cc6f681 100644
--- a/test/904-object-allocation/tracking.cc
+++ b/test/904-object-allocation/tracking.cc
@@ -21,7 +21,7 @@
 
 #include "base/logging.h"
 #include "jni.h"
-#include "openjdkjvmti/jvmti.h"
+#include "jvmti.h"
 #include "ScopedLocalRef.h"
 #include "ScopedUtfChars.h"
 #include "ti-agent/common_helper.h"